Patent US4074340A successfully refreshed from Google Patents.
US4074340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trimmable monolithic capacitors
Assignee: Vitramon Inc
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Filing: 1976-10-18
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Granted: 1978-02-14
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Expires: 1996-10-18
Abstract
Abstract Incrementally adjustable multilayer monolithic capacitors having a set of base electrodes extending to and being coextensive with a first terminal end surface of the capacitor and a set of incremental electrodes extending to and being coextensive with a side surface of the capacitor. The base electrodes are electrically interconnected by a conductive metal coating on the first terminal end surface. Capacitance values of the resultant capacitor can be incrementally adjusted by electrically interconnecting or disconnecting one or more of the incremental electrodes either along the side surface to which they extend and are coextensive with or along the second terminal end surface of the capacitor.
Inventors
- 👤 William C. Leigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:08
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/255
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
135 words
A multilayer monolithic ceramic capacitor comprising a dielectric material body having two major surfaces, a first side surface, a second side surface, a first end terminal and a second end terminal; at least two base electrodes each of which is in a plane substantially parallel to the major surfaces and each of which extends to and is coextensive with only the first end terminal there being no base electrodes extending to and in direct contact with the second end terminal; a conductive coating on the first end terminal which electrically interconnects each of the base electrodes extending to and coextensive with the first end terminal; and, at least one incremental electrode which extends, in a plane substantially parallel to the major surfaces, to, and is coextensive with, at least one side surface of the capacitor.
Claim 2
Dependent Claim
135 words
A multilayer monolithic ceramic capacitor comprising a dielectric material body having two major surfaces, a first side surface, a second side surface, a first end terminal and a second end terminal; at least two base electrodes each of which is in a plane substantially parallel to the major surfaces and each of which extends to and is coextensive with only the first end terminal there being no base electrodes extending to and in direct contact with the second end terminal; a conductive coating on the first end terminal which electrically interconnects each of the base electrodes extending to and coextensive with the first end terminal; and, at least one incremental electrode which extends, in a plane substantially parallel to the major surfaces, to, and is coextensive with, at least one side surface of the capacitor.
Claim 3
Dependent Claim
44 words
A capacitor as defined in claim 1 comprising at least two incremental electrodes and a conductuve path positioned along the side surface of the capacitor to which the incremental electrodes extend to and are coextensive with, the conductive path electrically interconnecting the incremental electrodes.
Claim 4
Dependent Claim
49 words
A capacitor as defined in claim 2 further comprising an electrically conductive coating on the second end terminal of the capacitor and wherein the conductive path electrically interconnecting the incremental electrodes extends to and is electrically joined to the conductive coating on the second end terminal of the capacitor.
Claim 5
Dependent Claim
21 words
A capacitor as defined in claim 2 wherein the incremental electrodes occupy at least two spaced apart layers of the capacitor.
Claim 6
Dependent Claim
24 words
A capacitor as defined in claim 2 wherein there are at least two spaced apart incremental electrodes on the same plane of the capacitor.
Claim 7
Dependent Claim
22 words
A capacitor as defined in claim 1 further comprising at least one pick-up pad positioned on a major surface of the capacitor.
Claim 8
Dependent Claim
15 words
A capacitor as defined in claim 2 wherein the incremental electrodes are of different sizes.
Claim 9
Dependent Claim
22 words
A capacitor as defined in claim 2 further comprising at least one incremental electrode positioned on a major surface of the capacitor.
Claim 10
Dependent Claim
22 words
A capacitor as defined in claim 6 wherein the incremental electrodes are electrically interconnected to the pick-up pad on the major surface.
Claim 11
Dependent Claim
59 words
A capacitor as defined in claim 9 further comprising an electrically conductive path on a major surface of the capacitor and a conductive coating on the second end terminal of the capacitor and wherein the conductive path on the major surface extends to and is electrically joined to the conductive path on the second end terminal of the capacitor.
Claim 12
Dependent Claim
57 words
A capacitor as defined in claim 1 wherein the capacitor has at least two incremental electrodes, at least one of the incremental electrodes extending to and being coextensive with the first side surface of the capacitor and at least one of the incremental electrodes extending to and being coextensive with the second side surface of the capacitor.
Claim 13
Dependent Claim
84 words
A capacitor as defined in claim 11 further comprising a first and a second conductive path positioned on the major surface of the capacitor, the first conductive path extending to and being electrically connected to the incremental electrodes on the major surface extending to and being coextensive with the first side surface of the capacitor and the second conductive path being electrically connected to the incremental electrodes on the major surface extending to and being coextensive with the second side surface of the capacitor.
Claim 14
Dependent Claim
34 words
A capacitor as defined in claim 12 wherein the conductive paths are outside of the electric field region of the capacitor as the electric field is defined by the dimensions of the base electrodes.
Claim 15
Dependent Claim
30 words
A capacitor as defined in claim 1 wherein at least one incremental electrode extends to and is coextensive with both the first and the second side surfaces of the capacitor.
Claim 16
Dependent Claim
38 words
A capacitor as defined in claim 6 wherein said at least one pick-up pad is positioned outside of the electric field region of the capacitor as the electric field is defined by the dimensions of the base electrodes.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |